What is the correct neck relief on an electric guitar?
At the deepest point of the curve, which is usually at about the 7th or 8th fret on an electric guitar, this should measure between 0.005 to 0.020 inch (or 0.015 to 0.05 centimeter). If you measure no relief, the neck may be convex. At that point, you’ll need to adjust the truss rod.